Lochouarn Laurence, Dia Ibrahima, Boccolini D., Coluzzi M., Fontenille Didier. (1998). Bionomical and cytogenetic heterogeneities of Anopheles funestus in Senegal. Transactions of the Royal Society of Tropical Medecine and Hygiene, 92 (6), p. 607-612. ISSN 0035-9203.
Titre du document
Bionomical and cytogenetic heterogeneities of Anopheles funestus in Senegal
Année de publication
1998
Type de document
Article
Auteurs
Lochouarn Laurence, Dia Ibrahima, Boccolini D., Coluzzi M., Fontenille Didier
Source
Transactions of the Royal Society of Tropical Medecine and Hygiene, 1998,
92 (6), p. 607-612 ISSN 0035-9203
Malaria transmission by Anopheles funestus was investigated from May 1994 to September 1997 in different locations from Western to Eastern Senegal along the Northern border of the Gambia. 10515 A. funestus were captured on human volunteers or by indoor pyrethrum spraying. Circumsporozoite protein rates showed tha A. funestus had a high infection rate, 2-7%, in the whole of the study area. Analysis of feeding behaviour showed great variation of anthropophilic rates from Western Senegal, where populations were highly anthropophilic, to Eastern Senegal, where they were much more zoophilic. In Eastern Senegal many females captured in bedrooms had fed outside on horses. Polytene chromosome analysis showed that the chromosome analysis showed that the general pattern of karyotype distribution is consistent with the hypothesis of 3 chromosomally differentiated popoulations of a. funestus. In samples from a central part of the study area, analysis showed lack of karyotype intergradation with a deficit of heterokaryotypes, suggesting the presnece of 2 genetically differentiated populations in an area of sympatry. (Résumé d'auteur)
Plan de classement
Lutte [052ANOPAL04]
Descripteurs
PALUDISME ; TRANSMISSION ; VECTEUR ; GENETIQUE DE POPULATION ; POLYMORPHISME GENETIQUE ; CARYOTYPE ; PREFERENCE TROPHIQUE ; INVERSION CHROMOSOMIQUE
